Just did these repairs myself. The hub nut is a 1 and 1/4 inch nut. You only need to remove this for the lower ball joints. You will also need a ball joint press to press out the old one and press in the new one. You will also need to remove your CV joint, brake caliper, brake disc for the lowers as well. Give yourself about 4 hours for each lower ball joint. Here's the press I bought http://www.mytoolstore.com/astro/ast...all+joint+tool
and it worked great once I figured out which parts to use and how to use them, its a bit of a puzzle at first. You'll also need some sort of pickle fork set that is wide enough to fit around the ball joints. One hint for the lowers is to remove the dust cap before separating the lower control arm and the steering knuckle. The rubber dusk cap will get in your way and you'll be banging on the pickle fork and cursing that it won't separate.
For the upper ball joints all you need is a drill to get out the rivets.
Feel free to contact me if you need some help while in the process. To do all 4 give yourself the entire weekend and good luck.